Democratic Sen. Al Franken took the unusual step Thursday of shutting down Sen. Joe Lieberman on the Senate floor.

Lieberman, a Connecticut independent, currently is the target of liberal wrath over his opposition to a government-run insurance plan in the health care bill.

Franken was presiding over the Senate Thursday afternoon as Lieberman spoke about amendments he planned to offer to the bill. Lieberman asked for an additional moment to finish — a routine request — but Franken refused to grant the time.

"In my capacity as the senator from Minnesota, I object," Franken said.